Have been thinking of getting an iPad and adding it to my existing AT&T Mobileshare plan but couldn't figure out how to do that after on their website. Stopped by an Apple Store but they said they just sell iPads and you use an app to choose the data plan. Stopped by an AT&T store but left after I got tired of waiting. Went to Best Buy but the only phone person in the store knew nothing about data plans and was texting somebody for answers to my questions. She finally said it would cost $20/mo to add it to my AT&T plan. I have read that it should be $10/mo and she really didn't inspire confidence so I left. Finally went back to the AT&T website and did an online chat. They sent me a link to add the iPad to my MobileShare plan for $10/month so I thought I was all set. But when I clicked the button, I got an error that my data plan was no longer available and I could not proceed. The person on the chat said this was just an issue with their website and I should choose a new data plan, make the purchase and call them when it arrives before activating and they will fix it. I said that was ridiculous and asked for a supervisor, who basically said the same thing. At that point I just gave up. I will not use the iPad with cellular data very often and rarely go over 500MB on my 2gb AT&T Mobileshare plan. So I just want an inexpensive way to have the option to use cell data when needed. Is there another carrier or another way to do this? Am on the fence about buying an iPad in the first place (I have an iPhone, two Apple TVs and three Macs) and this seems much too difficult.